install if absent scripts for Python and Perl modules - good for combining with first attempt to install via system packages, and then these will pull from PyPI or CPAN only those modules which aren't installed. This speeds up builds and uses the standard packaged modules where possible. This is also more reliable than getting random compile errors from CPAN as libraries update and introduce bugs or needing to install too many dev libraries
install scripts for Jython and build tools like Gradle and SBT for when Linux distros don't provide packaged versions or where the packaged versions are too old
Git branch management
utility scripts used from other scripts
.bashrc - shell tuning and sourcing of .bash.d/*.sh
.bash.d/*.sh - tonnes of functions and aliases for Linux, Docker, Kubernetes, Kafka, automatic GPG and SSH agent handling etc.
lib - Bash utility libraries full of functions for Docker, environment, CI detection (Travis CI, Jenkins), port and HTTP url availability content checks etc.
kafka_wrappers - scripts to make Kafka cli usage easier (for Solr CLI usage see solr-cli.pl in DevOps Perl Tools)
Nagios Plugin Kafka - Kafka Nagios Plugin written in Scala with Kerberos support
Pre-built Docker images are available for those repos (which include this one as a submodule) and the "docker available" icon above links to an uber image which contains all my github repos pre-built. There are Centos, Debian and Ubuntu versions of this uber Docker image containing all repos.